CA1076419A - Entrance for an urban or suburban transport vehicle - Google Patents
Entrance for an urban or suburban transport vehicleInfo
- Publication number
- CA1076419A CA1076419A CA290,059A CA290059A CA1076419A CA 1076419 A CA1076419 A CA 1076419A CA 290059 A CA290059 A CA 290059A CA 1076419 A CA1076419 A CA 1076419A
- Authority
- CA
- Canada
- Prior art keywords
- cover
- skirting
- shaft
- pivoted
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000033001 locomotion Effects 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 239000000543 intermediate Substances 0.000 description 2
- 241001527806 Iti Species 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Vehicle Step Arrangements And Article Storage (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
Entrance arrangement for an urban or suburban transport vehicle, typically a rail vehicle, having at least one middle step, a pivoted step cover and a pivoted skirting section, and having gear and lever means interposed between a power source and the moving parts, as well as safety means preventing maloperation, with the rotating axes of the moving parts being situated horizon-tally and parallel to the outer contour of the vehicle, characterized in that the skirting section which is arranged to pivot outwardly, carries a tread and in that the cover is arranged to pivot inwardly behind the tread edge of the floor.
Entrance arrangement for an urban or suburban transport vehicle, typically a rail vehicle, having at least one middle step, a pivoted step cover and a pivoted skirting section, and having gear and lever means interposed between a power source and the moving parts, as well as safety means preventing maloperation, with the rotating axes of the moving parts being situated horizon-tally and parallel to the outer contour of the vehicle, characterized in that the skirting section which is arranged to pivot outwardly, carries a tread and in that the cover is arranged to pivot inwardly behind the tread edge of the floor.
Description
:LO7~41.9 This invention relates to the arrangement of entrances on suburban traffic vehicles, especially a rail vehicle.
Urban transport vehicles, in particular, present a problem in that they are used on routes where high-level platforms exist, which is the case mostly on underground or elevated sections of the route, as well as stops where passengers alight on and board from the platforms at the level of the surrounding ground. Various solutions have been proposed to overcome this p rob I em .
E=or instance, a folding step is known with a fixed bottom step and a folding-type cover at the top as well as a pivoted section of the skirting. In the folded-down position one leaf of the cover serves as a relatively narrow step. The section of the skirting is connected to the cover by means of a linkage and the linkage can be moved by means of an actuating mechanism. Since this folding-type step can be made with only three steps, it fails to meet today~s standards of comfort.
According to a further development of this folding-step system, an addition~l step is provided below the fixed step and movably jointed to the recess cover provided at the vehicle floor in a manner causing it to move vertically and laterally by linkages in a level position as the vehicle door is opened or closed. Especially during winter operation, this known configuration is liable to be interfered with by slush thrown up and freezing in place. Even during surface operation under conditions similar to tramways, constant `
troubIes are to be expected in consequence of dirt accumuIations occassioned by this design.
Similar problems tend to arise in another movable step arrangement which consists of at least one fixed step offset relative to the floor level of the vehicle in a recess and another step or cover which is arranged to slide vertically and laterally. To increase the si~e of the step opening this design may also include a section of the floor at floor level which can be slid or folded away. In order to move the individual parts of this step configuration into the positions required, a rather complex linkage is required.
Another pivoting-type step with only two steps is in the shape of a U-section whose legs when pivoted-in are parallel to the vertical longitudinal centre plane of the vehicle and in the pivoted-out position transverse to this ,~ .
: .
37~19 plane when according to its position either the web or one of the legs provides the tread. Pivoted to one end of the leg there is also a section of the skirtingwhich can be folded out of the way. This pivoting-type step which is mainly intended for main lines does not permit the necessary number of steps to be provtded that are required on urban and suburban transport.
Furthermore, a multi-step entrance is l<nown with movable steps which consists of a fixed bottom step and a step that is movable up to the flooras well as a flap in the skirting actuated dependent on the motion of the steps,the step being guided in inclined tracks for adjustment for height in a level position. To this end, a link engages a lever connected to the adjustable step, the free end of the lever being pivoted to the hinged skirting Flap. In this case, ;~
the fixed bottom step tends to be troublesome in some applications.
Finally, there is known a multi-step entrace with a movable step which is guided in tracks inclined towards the longitudinal centreline of the vehicle and arranged to be adjustable for height in a level position by means ofa linkage pivoted on a shaft fixed to the coach. The movable step in this case has vertical spacers at its underside to which the other step is pivotably connected with the pivoting motion being controlled by a linkage connected to the shaft. This configuration is not sufficiently adaptable, in particular regarding the difference in height that can be negotiated.
As against this, it is the object of this invention to improve the known entrance arrangements with moving step or skirting sections or step covers for enhanced comfort, better suitability for railway operation, increased ;
safety and economic construction.
The solution offered by the invention defined herein, inter alia, affords the following advantages: with the cover closed, when the vehicle floor extends to the vehicle outline, the major proportion of the weight of passengers standing on the cover is transmitted by components which can be very amply dimensioned and are subject to a low rate of wear.
In the open position, the weight of the cover is completely balanced.
The dual function of the skirting section amounts to economic construction.
The complete arrangement is very little vulnerable even in rough railway operation.
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The arrangement is suitable for all common door types on urban and suburban vehicles. Aiso it is equally suitable to serve high and low-level p I atforms.
In tramway-type operation or where several stops follow each other with low platform levels, the folding cover neecl not be raised into the flush (level) posit70n each time.
As a further development of the invention, a plurality o-f fixed steps may be provided. This will improve easy boarding and alighting and ensure compliance w jth the FSF Recommendation in facilitating movement of disabled persons. According to these, at least four steps are required between ground level and the floor level in the transport vehicle.
A further embodiment of the invention provides for guide members at the leaves of the folding cover which are slidable on a specially shaped curved track. First of all, this reduces the unfavourable gap between the floor edge and the moving cover. Moreover, part of the load on the cover can be transmitted directly through the track to the underframe of the vehicle.
Lastly, the special shape of the track indicated enables the cover to be located in the flush (level) position without parts of the actuating mechanism requiring the continued application of power means.
A principal object is to provide an entrance arrangement for an urban or suburban transport vehicle, typically a rail vehicle, having at least one middle step, a pivoted step cover and a pivoted skirting section, and having gear and lever means interposed between a power source and the moving parts, as well as safety means preventing maloperation, with the rotating axes of the moving parts being situated horizontally and parallel to the outer contour of the vehicle, characterized in that the skirting section which is arranged to pivot outwardly, carries a tread and in that the cover is arranged to pivot inwardly behind the tread edge of the floor. ~ -Further embodiments of the invention are referred to in the ~; 30 claims, the description hereunder of a preferred embodiment as well as the schematic drawings in which:
Figure 1 shows the entrance arrangement in section with two fixed steps, a folding skirting section and a folding cover;
Figure 2 is a simplified entrance arrangement with a fixed cover, 1.
. - , ~, ,. ,,, :
.. ~ "
as well as folding floor section; and Figure 3 is a further simpli-Fication of the entrance arrangement with a fixed cover as well as steps which pivot into position together with the fixed cover.
Provided in the side wall of a vehicle whose outline is designated 24 there 7s a doorway arranged to be closed by any type oF vehicle door 23, the doorway being designed with an entrance recess below the level of the floor 20. The door may have any of the usual seals 22. The entrance recess in the underframe 19 which is not fully shown has at least one permanent inter-mediate step 16, mounted between side panels 18.
At the top, the entrance recess is arranged to be closed by a Folding cover 3 which is flush with the floor 20 and at the outside by a skirting section 13 which is arranged to pivot down. The skirting section 13, which when closed is flush with the vehicle outline 24, is formed on its inside with a step30. If necessary, the outer surface of the skirting section may be curved to match the contour of the fixed part of the skirting. The skirting section 13 is held by the levers 14. These in turn are solidly attached to the skirting -shaft 12.
The moving parts of the system are hinged or pivoted about -horizontal shafts which are in parallel with the outer contour of the vehicle.
The folding-type cover 3 which ls sub-divided into at least two leaves is arranged to pivot inwards behind the tread edge 33 of the floor 20.
These leaves are connected by hinges 5 in a manner that, as the cover is pivoted inwards, its leaves form an angle against each other of more than Attached to the leaves of the folding cover 3, preferably by means of side members 32, are guide members 6 designed as rollers which are guided slidably on curved tracks 7 which have a radius 29 relative to the axis of the cover shaft 2. The curved track 7 is formed with a lifting ramp 26 in the area which the guide member 6 passes at the start of the opening movement.
In the closed position of the cover, however, the guide member 6 is positioned on a saddle 27 of the track which adjoins the raising ramp 26 with a smaller radius 28.
The leaves of the folding cover and its sides 32 are additionally _~ .
~ .
... .
..
1~7~
pivotably connected with support arms 1 and 31 one of which in turn is positively and fixedly connected to the cover shaft 2, and the other of which is rotatably mounted thereon. In other words, either lever 1 or lever 31 is non-rotatably connected to shaft 2, and the other of lever 1 and lever 31 is rotatably connected to shaft 2. As is belleved self-evident, if this were not so, it would not be possible for cover 3 to assume its folded position.
Both the cover shaft 2 and the skirting shaft 12 are rotatably mounted in the underframe.
The cover shaft 2 is arranged to be actuated by a conventional mechanism 37 with gearing means 35 interposed. The specific type of mechanism used depends on the desired type of power means (electric power; compressed air, pressure oil etc.). Gearing means may be spur gear, worm gear or travelling nut screw mechanisms, but lever systems also come into consideration.In a similar fashion the skirting shaft 12 is arranged to be actuated without this having been specifically shown in the drawing.
The maximum pivoting range of the skirting section 12 is limitable by means of stop means (e. g. Iugs or stop 34).
Features serving to ensure passenger safety are as follows:
The gap 10 is minimized by the guide member 6 rolling on the curved track 7.
Whereas, in the case of a non-folding cover, the size of the gap would be dictated by the relatively high rise 8 on the arc oF the circle 2S, it is necessary to allow for only the substantially reduced rise 9 in the present invention.
In addition, a cover strip 21 consisting of reslient material is provided at the tread edge 33.
Further protection against persons getting caught in the gap is provided by a resilient safety strip 11 at the front edge of the cover 3. If this safety strip is deformed on contacting the part of a body of a person or an object, this deformation is used to stop further motion of the part liable to cause injuries in a manner known in the art.
A further known safety feature prevents raising the step 30 as long as there is a load on it.
Finally, provision is made to prevent the skirting section 13 from pivoting out as long as the cover has not pivoted out of the way. This is effected by a mechanical interlock between the skirting shaft 12 and the cover .) . .
~L~'76~
shaft 2. This interlock is typified by the pair of locking cam members 15.
The entrance arrangement according to the prevent invention offers the fol lowing operational possibi I ities:
-5a-,~ . . .
-6- ~76~19 When operating on routes with high-level platforms, for instance on underground lines, the folding step cover 3 remains in the hori-~ontal flush position and, consequently completely covers the step recess. ~urthermore, the skirting section 13 would not be pivo-ted down ln this case. tn other words, only the doors 23 would have to opera-ted ~or loading ancl unloading passengers.
~ hen a stop with a low-level platfor-m is required to be served, the folding cover would be pivoted inwards from its initial postion A
into the in-termediate posi-tion B. Since, to -this end, the hinge S need be raised only by the difference between the radii 28 and 29, this move-ment would occur only when no passengers are standing on the cover. Out of the intermediate position B, the cover would then be pivoted into the second position of rest C. Then the skirting section 13 can be pivoted down and the door 23 opened.
For straight tramway operation, i.e., with passengers boarding and alighting on low-level platforms, the folding cover may remain in position C. Consequently only the skirting section 13 and the door 23 would be operated.
Figure 2 shows a slightly modified embodiment of the invention where the folding feature of the cover 3 has been omitted; in other words, the cover 3 is in one piece. When low-level platforms have to be served, the cover 3 would be pivoted away bodily by means of the cover shaft 2. The skirting section 13 can be pivoted in the manner described further above. In order to keep the gap 10 at a minimum, the tread surface of the floor 20 is formed as a floor fap 42 pivotably mounted on a hinge 39. This flap is guided by means of members 6 (preferably rollers) relative to -the surface of cover 3. The movement of the floor fap 43 may be controlled by a spring member 36. In a further embodiment, a cover 38 is provided to close a gap that may exist between the step 16 and the underside of the cover 3.
A further simplification can be seen in Figure 3. Here, -the cover 3 together with the steps 40, 41 forms a structure supported by side members 32 which structure can be pivoted on a cover shaft 2. The tread edge 33 of the floor 20 is formed nearly tangentially to the arc of the circle 25.
Unless stated expressly to the contrary, the alterna-tive embodiments are generally arranged in line wi-th the basic embodiments described.
Urban transport vehicles, in particular, present a problem in that they are used on routes where high-level platforms exist, which is the case mostly on underground or elevated sections of the route, as well as stops where passengers alight on and board from the platforms at the level of the surrounding ground. Various solutions have been proposed to overcome this p rob I em .
E=or instance, a folding step is known with a fixed bottom step and a folding-type cover at the top as well as a pivoted section of the skirting. In the folded-down position one leaf of the cover serves as a relatively narrow step. The section of the skirting is connected to the cover by means of a linkage and the linkage can be moved by means of an actuating mechanism. Since this folding-type step can be made with only three steps, it fails to meet today~s standards of comfort.
According to a further development of this folding-step system, an addition~l step is provided below the fixed step and movably jointed to the recess cover provided at the vehicle floor in a manner causing it to move vertically and laterally by linkages in a level position as the vehicle door is opened or closed. Especially during winter operation, this known configuration is liable to be interfered with by slush thrown up and freezing in place. Even during surface operation under conditions similar to tramways, constant `
troubIes are to be expected in consequence of dirt accumuIations occassioned by this design.
Similar problems tend to arise in another movable step arrangement which consists of at least one fixed step offset relative to the floor level of the vehicle in a recess and another step or cover which is arranged to slide vertically and laterally. To increase the si~e of the step opening this design may also include a section of the floor at floor level which can be slid or folded away. In order to move the individual parts of this step configuration into the positions required, a rather complex linkage is required.
Another pivoting-type step with only two steps is in the shape of a U-section whose legs when pivoted-in are parallel to the vertical longitudinal centre plane of the vehicle and in the pivoted-out position transverse to this ,~ .
: .
37~19 plane when according to its position either the web or one of the legs provides the tread. Pivoted to one end of the leg there is also a section of the skirtingwhich can be folded out of the way. This pivoting-type step which is mainly intended for main lines does not permit the necessary number of steps to be provtded that are required on urban and suburban transport.
Furthermore, a multi-step entrance is l<nown with movable steps which consists of a fixed bottom step and a step that is movable up to the flooras well as a flap in the skirting actuated dependent on the motion of the steps,the step being guided in inclined tracks for adjustment for height in a level position. To this end, a link engages a lever connected to the adjustable step, the free end of the lever being pivoted to the hinged skirting Flap. In this case, ;~
the fixed bottom step tends to be troublesome in some applications.
Finally, there is known a multi-step entrace with a movable step which is guided in tracks inclined towards the longitudinal centreline of the vehicle and arranged to be adjustable for height in a level position by means ofa linkage pivoted on a shaft fixed to the coach. The movable step in this case has vertical spacers at its underside to which the other step is pivotably connected with the pivoting motion being controlled by a linkage connected to the shaft. This configuration is not sufficiently adaptable, in particular regarding the difference in height that can be negotiated.
As against this, it is the object of this invention to improve the known entrance arrangements with moving step or skirting sections or step covers for enhanced comfort, better suitability for railway operation, increased ;
safety and economic construction.
The solution offered by the invention defined herein, inter alia, affords the following advantages: with the cover closed, when the vehicle floor extends to the vehicle outline, the major proportion of the weight of passengers standing on the cover is transmitted by components which can be very amply dimensioned and are subject to a low rate of wear.
In the open position, the weight of the cover is completely balanced.
The dual function of the skirting section amounts to economic construction.
The complete arrangement is very little vulnerable even in rough railway operation.
~al764~L~
The arrangement is suitable for all common door types on urban and suburban vehicles. Aiso it is equally suitable to serve high and low-level p I atforms.
In tramway-type operation or where several stops follow each other with low platform levels, the folding cover neecl not be raised into the flush (level) posit70n each time.
As a further development of the invention, a plurality o-f fixed steps may be provided. This will improve easy boarding and alighting and ensure compliance w jth the FSF Recommendation in facilitating movement of disabled persons. According to these, at least four steps are required between ground level and the floor level in the transport vehicle.
A further embodiment of the invention provides for guide members at the leaves of the folding cover which are slidable on a specially shaped curved track. First of all, this reduces the unfavourable gap between the floor edge and the moving cover. Moreover, part of the load on the cover can be transmitted directly through the track to the underframe of the vehicle.
Lastly, the special shape of the track indicated enables the cover to be located in the flush (level) position without parts of the actuating mechanism requiring the continued application of power means.
A principal object is to provide an entrance arrangement for an urban or suburban transport vehicle, typically a rail vehicle, having at least one middle step, a pivoted step cover and a pivoted skirting section, and having gear and lever means interposed between a power source and the moving parts, as well as safety means preventing maloperation, with the rotating axes of the moving parts being situated horizontally and parallel to the outer contour of the vehicle, characterized in that the skirting section which is arranged to pivot outwardly, carries a tread and in that the cover is arranged to pivot inwardly behind the tread edge of the floor. ~ -Further embodiments of the invention are referred to in the ~; 30 claims, the description hereunder of a preferred embodiment as well as the schematic drawings in which:
Figure 1 shows the entrance arrangement in section with two fixed steps, a folding skirting section and a folding cover;
Figure 2 is a simplified entrance arrangement with a fixed cover, 1.
. - , ~, ,. ,,, :
.. ~ "
as well as folding floor section; and Figure 3 is a further simpli-Fication of the entrance arrangement with a fixed cover as well as steps which pivot into position together with the fixed cover.
Provided in the side wall of a vehicle whose outline is designated 24 there 7s a doorway arranged to be closed by any type oF vehicle door 23, the doorway being designed with an entrance recess below the level of the floor 20. The door may have any of the usual seals 22. The entrance recess in the underframe 19 which is not fully shown has at least one permanent inter-mediate step 16, mounted between side panels 18.
At the top, the entrance recess is arranged to be closed by a Folding cover 3 which is flush with the floor 20 and at the outside by a skirting section 13 which is arranged to pivot down. The skirting section 13, which when closed is flush with the vehicle outline 24, is formed on its inside with a step30. If necessary, the outer surface of the skirting section may be curved to match the contour of the fixed part of the skirting. The skirting section 13 is held by the levers 14. These in turn are solidly attached to the skirting -shaft 12.
The moving parts of the system are hinged or pivoted about -horizontal shafts which are in parallel with the outer contour of the vehicle.
The folding-type cover 3 which ls sub-divided into at least two leaves is arranged to pivot inwards behind the tread edge 33 of the floor 20.
These leaves are connected by hinges 5 in a manner that, as the cover is pivoted inwards, its leaves form an angle against each other of more than Attached to the leaves of the folding cover 3, preferably by means of side members 32, are guide members 6 designed as rollers which are guided slidably on curved tracks 7 which have a radius 29 relative to the axis of the cover shaft 2. The curved track 7 is formed with a lifting ramp 26 in the area which the guide member 6 passes at the start of the opening movement.
In the closed position of the cover, however, the guide member 6 is positioned on a saddle 27 of the track which adjoins the raising ramp 26 with a smaller radius 28.
The leaves of the folding cover and its sides 32 are additionally _~ .
~ .
... .
..
1~7~
pivotably connected with support arms 1 and 31 one of which in turn is positively and fixedly connected to the cover shaft 2, and the other of which is rotatably mounted thereon. In other words, either lever 1 or lever 31 is non-rotatably connected to shaft 2, and the other of lever 1 and lever 31 is rotatably connected to shaft 2. As is belleved self-evident, if this were not so, it would not be possible for cover 3 to assume its folded position.
Both the cover shaft 2 and the skirting shaft 12 are rotatably mounted in the underframe.
The cover shaft 2 is arranged to be actuated by a conventional mechanism 37 with gearing means 35 interposed. The specific type of mechanism used depends on the desired type of power means (electric power; compressed air, pressure oil etc.). Gearing means may be spur gear, worm gear or travelling nut screw mechanisms, but lever systems also come into consideration.In a similar fashion the skirting shaft 12 is arranged to be actuated without this having been specifically shown in the drawing.
The maximum pivoting range of the skirting section 12 is limitable by means of stop means (e. g. Iugs or stop 34).
Features serving to ensure passenger safety are as follows:
The gap 10 is minimized by the guide member 6 rolling on the curved track 7.
Whereas, in the case of a non-folding cover, the size of the gap would be dictated by the relatively high rise 8 on the arc oF the circle 2S, it is necessary to allow for only the substantially reduced rise 9 in the present invention.
In addition, a cover strip 21 consisting of reslient material is provided at the tread edge 33.
Further protection against persons getting caught in the gap is provided by a resilient safety strip 11 at the front edge of the cover 3. If this safety strip is deformed on contacting the part of a body of a person or an object, this deformation is used to stop further motion of the part liable to cause injuries in a manner known in the art.
A further known safety feature prevents raising the step 30 as long as there is a load on it.
Finally, provision is made to prevent the skirting section 13 from pivoting out as long as the cover has not pivoted out of the way. This is effected by a mechanical interlock between the skirting shaft 12 and the cover .) . .
~L~'76~
shaft 2. This interlock is typified by the pair of locking cam members 15.
The entrance arrangement according to the prevent invention offers the fol lowing operational possibi I ities:
-5a-,~ . . .
-6- ~76~19 When operating on routes with high-level platforms, for instance on underground lines, the folding step cover 3 remains in the hori-~ontal flush position and, consequently completely covers the step recess. ~urthermore, the skirting section 13 would not be pivo-ted down ln this case. tn other words, only the doors 23 would have to opera-ted ~or loading ancl unloading passengers.
~ hen a stop with a low-level platfor-m is required to be served, the folding cover would be pivoted inwards from its initial postion A
into the in-termediate posi-tion B. Since, to -this end, the hinge S need be raised only by the difference between the radii 28 and 29, this move-ment would occur only when no passengers are standing on the cover. Out of the intermediate position B, the cover would then be pivoted into the second position of rest C. Then the skirting section 13 can be pivoted down and the door 23 opened.
For straight tramway operation, i.e., with passengers boarding and alighting on low-level platforms, the folding cover may remain in position C. Consequently only the skirting section 13 and the door 23 would be operated.
Figure 2 shows a slightly modified embodiment of the invention where the folding feature of the cover 3 has been omitted; in other words, the cover 3 is in one piece. When low-level platforms have to be served, the cover 3 would be pivoted away bodily by means of the cover shaft 2. The skirting section 13 can be pivoted in the manner described further above. In order to keep the gap 10 at a minimum, the tread surface of the floor 20 is formed as a floor fap 42 pivotably mounted on a hinge 39. This flap is guided by means of members 6 (preferably rollers) relative to -the surface of cover 3. The movement of the floor fap 43 may be controlled by a spring member 36. In a further embodiment, a cover 38 is provided to close a gap that may exist between the step 16 and the underside of the cover 3.
A further simplification can be seen in Figure 3. Here, -the cover 3 together with the steps 40, 41 forms a structure supported by side members 32 which structure can be pivoted on a cover shaft 2. The tread edge 33 of the floor 20 is formed nearly tangentially to the arc of the circle 25.
Unless stated expressly to the contrary, the alterna-tive embodiments are generally arranged in line wi-th the basic embodiments described.
Claims (8)
1. Entrance arrangement for an urban or suburban transport vehicle, typically a rail vehicle, having at least one middle step, a pivoted step cover and a pivoted skirting section, and having gear and lever means Interposed between a power source and the moving parts; a mechanical inter-lock comprised of a pair of locking cam members, one cam member being on a shaft associated with said pivoted skirting section, the second of said cam members being on a shaft associated with said pivoted step cover, said cam members cooperating to prevent said skirting section from pivoting, so long as said step cover remains in closed position; the rotating axis of the moving parts are all situated horizontally and parallel to the outer contour of the vehicle, and the skirting section is arranged to pivot outwardly, and carries a tread, with the cover being arranged to pivot inwardly behind the tread edge of the floor; and being further characterized in that at least two fixed steps are provided between the first step and the floor and with said step cover being foldable; guide members are provided on the folding cover, these guide members being arranged slidably on curved tracks which are formed with a lifting ramp to increase the rolling radius to the radius; a saddle is provided adjoining the lifting ramp at the side of the smaller rolling radius; said folding cover being pivotably connected by means of support levers at the pivot with one of the support levers being positively and fixedly connected to the cover shaft, the other of said support levers being rotatably connected to the cover shaft.
2. Entrace arrangement as in claim 1, characterized in that the skirting section is solidly connected with the skirting levers with a skirting shaft.
3. Entrance arrangement as in claim 2, characterized in that the pivoting range of the folding skirting section is limitable by stops.
4. Entrance arrangement as in claim 3, characterized in that both the cover shaft and the skirting shaft are connected via gearing means to a drive unit selected from the group consisting of hydraulic, electric and com-pressed air and being connected thereto via drive levers.
5. Entrance arrangement as in claim 1, characterized in that the single-leaf cover is arranged to fold inwards behind the fixed step by means of the cover shaft and that the gap is reducible by a floor falp pivotable about a hinge with the motion of this flap being controlled by guide members and spring means.
6. Entrance arrangement as in claim 1, characterized in that the folding cover is provided with a safety strip at its inner face.
7. Entrance arrangement as in claim 2, characterized in that a pair of members preventing maloperation is provided on the moving devices of the cover and skirting section.
8. Entrance arrangement as in claim 1, characterized in that the steps held between the side members form an integral unit with the cover which is arranged to pivot inward by means of the cover shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA290,059A CA1076419A (en) | 1977-11-02 | 1977-11-02 | Entrance for an urban or suburban transport vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA290,059A CA1076419A (en) | 1977-11-02 | 1977-11-02 | Entrance for an urban or suburban transport vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1076419A true CA1076419A (en) | 1980-04-29 |
Family
ID=4109926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA290,059A Expired CA1076419A (en) | 1977-11-02 | 1977-11-02 | Entrance for an urban or suburban transport vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1076419A (en) |
-
1977
- 1977-11-02 CA CA290,059A patent/CA1076419A/en not_active Expired
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